Added error message to the progess label if something goes wrong.
Added error message to the progess label if something goes wrong.

Change-Id: If9e7a76bea49fa681e3fc7b3586b04fbbcbe279d

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core